1315790921072 has 20 divisors (see below), whose sum is σ = 2550397128720. Its totient is φ = 657623920128.

The previous prime is 1315790921047. The next prime is 1315790921077. The reversal of 1315790921072 is 2701290975131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1315790921077) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16931297 + ... + 17008832.

It is an arithmetic number, because the mean of its divisors is an integer number (127519856436).

Almost surely, 2^{1315790921072} is an apocalyptic number.

It is an amenable number.

1315790921072 is a deficient number, since it is larger than the sum of its proper divisors (1234606207648).

1315790921072 is a wasteful number, since it uses less digits than its factorization.

1315790921072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33942560 (or 33942554 counting only the distinct ones).

The product of its (nonzero) digits is 238140, while the sum is 47.

The spelling of 1315790921072 in words is "one trillion, three hundred fifteen billion, seven hundred ninety million, nine hundred twenty-one thousand, seventy-two".